An Ok Singly-Linked Stack

In the previous chapter we wrote up a minimum viable singly-linked stack. However there's a few design decisions that make it kind of sucky. Let's make it less sucky. In doing so, we will:

  • Deinvent the wheel
  • Make our list able to handle any element type
  • Add peeking
  • Make our list iterable

And in the process we'll learn about

  • Advanced Option use
  • Generics
  • Lifetimes
  • Iterators

Let's add a new file called

// in

pub mod first;
pub mod second;

And copy everything from into it.